package Demo2;

import java.util.Scanner;

public class Demo16 {

    public volatile static int flag=0;

    public static void main(String[] args) {
        Thread t1=new Thread(()->{
            while (flag==0){
            }
            System.out.println("t1线程结束");
        });

        Thread thread=new Thread(()->{
            System.out.println("请输入flag的值");
            Scanner scanner=new Scanner(System.in);
            flag=scanner.nextInt();
        });
        thread.start();
        t1.start();

    }
}
